package usbinterface;

public class Test {
			public static void main(String[] args) {
				ComputerTest man = new ComputerTest();
				UsbTest mou=new Mouse();
				UsbTest key=new KeyBord();
				UsbTest mic=new Mic();
				UsbTest cam=new Camara();
				man.add(key);
				man.add(mou);
				man.add(mic);
				man.add(cam);
				man.powerOn();
				man.powerOff();

			}
}
